JPS5855267A - Control system for printer with auxiliary paper supplier - Google Patents

Abstract

PURPOSE:To prevent the disconnection of printing operation by using a system in which a paper supplied housing a large number of papers and capable of supplying papers one by one in order is provided in two sets, and papers are supplied from the other paper supplied until papers in one main paper supplier are used up and new papers are supplied. CONSTITUTION:Two sets of paper suppliers 3 and 4 housing a large number of recording papers and capable of supplying papers one by one orderly to a printing portion are provided in a printer 1. Until recording papers in one main paper supplier 3 being used preferentially are used up and new papers are supplied, papers are supplied from the other paper supplier 4 to the printing portion, and thereby the disconnection of printing operation is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printing device equipped with an auxiliary paper feed section in addition to a main paper feed section, and in particular to prevent the inconvenience of wasting subsequent print data due to the occurrence of paper out during printing. This is what we are trying to prevent.

If the printer used in the on-fin system is capable of specifying copying, the same print data can be printed successively on several dozen sheets of paper with one specification.

In this case, if the recording paper runs out before the specified number of sheets is reached, conventional devices treat it as an error similar to other device failures, so after the host machine side recording paper is replenished, the same data will be displayed again. The disadvantage is that the data must be re-sent.

The present invention attempts to improve this point, and its features include a paper feeder that can accommodate multiple sheets of recording paper that have been pressed in advance and feed them one by one to the printing section. There are 12 sets of paper sections, and if the recording paper in the main paper feed section, which is used with priority, runs out in the middle of printing a series of print data that requires multiple sheets of paper, the paper is fed from the auxiliary paper feed section. The control is performed so that printing of the series of print data is completed, and thereafter, transition to a new printing state is prohibited until the main paper feed section is replenished with recording paper. This will be explained in detail below with reference to all the drawings.

FIG. 1 is a schematic configuration diagram of a double cassette type printer device showing an embodiment of the present invention, in which 1 is a housing, 2 is a front panel thereof, and 5.4 is a main body detachably attached to the housing 1. and an auxiliary cassette, 5 is a recording paper, 6 is a roller for feeding the recording paper, a feed roller for transporting 7Fi recording paper, a drum for 8#i printing, 9 is an error indicator light, 10 is a main cassette (main paper feed Part) 3. Warning indicator light indicating paper out, 11
is a warning indicator light indicating that the auxiliary cassette (auxiliary paper feed section) 4 is out of paper. A large number of loaded recording sheets 5 are stored in the cassettes 3 and 4, and hardware determines which cassette is to be used preferentially. In the following, it is assumed that the main cassette 3 is used preferentially. This selection is performed by roller 6. For example, if the roller on the main cassette 3 side is lowered to the 6-metal payout position, it will be shown in Figure 1 (a).
The recording paper 5 is fed out from the main cassette 3 as shown below.
(It is guided by a feed roller 7 and guided to a drum 8. This printer device is, for example, a laser printer, and an electrostatic charge S* is formed on the drum 8 by laser irradiation according to the print information. After all the toner has adhered, it is transferred and fixed onto the recording paper 5. On the other hand, when the auxiliary cassette 41IO roller 6 is lowered to the feeding position, the recording paper 5 is released from the auxiliary cassette 4 side as shown in Fig. 1(b). It is fed out and guided by the feed roller 7 to the drum 8 position. In addition, it is only necessary to compensate for the printing timing in accordance with the distance deviation in feeding the recording paper 5 from the cassettes () 3.4 to the drum 8 at different installation positions with hardware. ) The operation will be explained with reference to the flowchart. The process begins by selecting cassette 3 on the main side at Print Processing Company (,).

Then, all the various states of the printer are detected by a status register (not shown), and if there is no error, the printer is activated and data is printed on the first recording paper 5. Next is (b
) and sense the printer status again (do this every time). And if there is no error (e)
Jump to 0 and check whether the specified number of sheets have been printed. If it is not completed, return to the (&) @, start the printer, and print the data on the second sheet of recording paper 5. If there is no error in the printer, this process is repeated until the specified number of copies are completed.

If there is an error in (a), it is determined whether the error is due to the main cassette 30 being out of paper. If so, determine whether there is an auxiliary cassette 4 and whether paper is set there, and if both are YES, select the auxiliary cassette 4, and issue a warning on the main side as shown in Figure 1 (b). Indicator light 1
Turn on 0. This notifies the main cassette 3 that no recording paper 5 remains, but this is for the printer operator and not for the host machine that transfers the data. That is, printing continues using the recording paper 5 from the auxiliary cassette 4 thereafter. That is, in (a), the auxiliary case,
After selecting , jump to (b) [Phase] and determine whether there is an error. At this time, the main cassette 3 is free of lice, so an error occurs. However, if the paperless cassette is not auxiliary, the process returns to <1) O (9), and this process is repeated until the designated number of sheets is completed.

By carrying out the above-described control, even if the main cassette 3 runs out of recording paper, printing continues using the recording paper in the auxiliary cassette 4, so that data transferred from the host machine side is not wasted. However, this only temporarily avoids the emergency situation, so when the specified number of sheets is completed in (b), go to e in (・), the error display - light 9t in Figure 1 lights up, and the host machine Error (D. Male@
Not R@ady) is notified and the process ends. In other words, subsequent data reception is prohibited until the main cassette 3 is replenished with recording paper. This is different from a normal termination fence. In other words, if there is enough paper in main cassette 3 (
Since printing of the designated number of sheets is completed in step C), the process can be completed by skipping to step (f) and notifying the host machine of normal completion.

On the other hand, the main cassette 3 is out of paper and the auxiliary cassette y is empty.
If there is no paper in this cassette 4 while the cassette 4' is being used, the warning indicator light 11 on the auxiliary side of the first gJ also lights up from O in (b) to (d). In this case, if the operator sees the warning indicator light 10 on the main side and replenishes the main cassette 3 with recording paper, he can select one cassette 3 on the main side and continue printing. ] Nitobu)・. However, [5, if the main cassette 5 has not yet been replenished with recording paper, jump to the (・) @. (・) is a common error termination process. In (a), there is an error other than out of paper (e.g., out of developer, out of toner) or when there is no paper in the auxiliary cassette 4, and in (b), there is an error other than out of paper. If there is an error, this is executed when no paper is set in the main cassette 4 in (f).

Note that control data for specifying copy, form overlay, etc. is present at the beginning of the print data, so if you add information to specify which paper spool or toe to use, you can switch the paper size. It is also possible to serve.

FIG. 3 shows a specific example of a laser printer to which the present invention is applied.
The exposure system includes a semiconductor laser 10, a scanner 11, an imaging lens 12, and an AC charger 13. Drawer 58 rotates clockwise in the figure, and around it is cleaner blade 1.
4, a charger 15, the above-mentioned AC charger 13, a full exposure lamp 16, a developer container 17, an electrode row 218, an aperture charger 19, and a transfer charger 20 are arranged in close proximity. The recording paper 5 from the main cassette 3 is moved to the roller 7 according to the solid arrow ■.
, guide 21, transfer belt roller 20, fixing heater 22t-
After that, the paper is discharged to the paper discharge tray 23. On the other hand, the recording paper 5 from the auxiliary cassette 4 is guided to the guide 21 via the guide 24 according to the broken line arrow [phase], and thereafter is transferred and discharged through the same path as the main cassette.

As described above, according to the present invention, paper outage in the main paper feed section can be rescued by the auxiliary paper feed section, so data transferred from the host machine side is not wasted, and the trouble of retransmitting the same data can be saved. There are advantages.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention, FIG. In the figure, 3 is a main paper feed section, 4 is an auxiliary paper feed section, and 5 is a recording paper. Figure 2 C(2) (b)(
d) (e)

Claims (1)

[Claims] There are two sets of paper feed sections 'fr that can accommodate multiple sheets of pre-cut recording paper and feed them one by one to the printing section, and the main paper feed section, which is used preferentially, can hold multiple sheets of recording paper. If the paper runs out in the middle of printing a series of print data that requires 100 sheets of paper, start feeding paper from the auxiliary paper feed section to complete printing of the series of print data, and from then on, the main paper feed section will be filled with paper. A control system for a printing device equipped with an auxiliary paper feed section, characterized in that control is performed to prohibit transition to a new printing state until the paper is replenished.